We don't have a 64 bit vector integer multiply on z. Add a specific check for that.
2017-09-26 Andreas Krebbel <kreb...@linux.vnet.ibm.com> * gcc.dg/vect/pr60656.c: Check vect_mult_long. * lib/target-supports.exp (check_effective_target_vect_mult_long): New proc. --- gcc/testsuite/gcc.dg/vect/pr60656.c | 3 ++- gcc/testsuite/lib/target-supports.exp | 24 ++++++++++++++++++++++++ 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/gcc/testsuite/gcc.dg/vect/pr60656.c b/gcc/testsuite/gcc.dg/vect/pr60656.c index d9e30bb..f44269a 100644 --- a/gcc/testsuite/gcc.dg/vect/pr60656.c +++ b/gcc/testsuite/gcc.dg/vect/pr60656.c @@ -43,4 +43,5 @@ int main() return 0; } -/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_widen_mult_si_to_di_pattern } } } */ +/* P * P * P requires a widening multiplication first as well as a longxlong->long after that. */ +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_widen_mult_si_to_di_pattern && vect_mult_long } } } } */ diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp index b45a19e..7fdfbbb 100644 --- a/gcc/testsuite/lib/target-supports.exp +++ b/gcc/testsuite/lib/target-supports.exp @@ -5166,6 +5166,30 @@ proc check_effective_target_vect_long { } { return $answer } +# Return 1 if the target supports hardware vector multiplication of +# long operands with a long result, 0 otherwise. +# +# This can change for different subtargets so do not cache the result. + +proc check_effective_target_vect_mult_long { } { + if { [istarget i?86-*-*] || [istarget x86_64-*-*] + || (([istarget powerpc*-*-*] + && ![istarget powerpc-*-linux*paired*]) + && [check_effective_target_ilp32]) + || [is-effective-target arm_neon] + || ([istarget sparc*-*-*] && [check_effective_target_ilp32]) + || [istarget aarch64*-*-*] + || ([istarget mips*-*-*] + && [et-is-effective-target mips_msa]) } { + set answer 1 + } else { + set answer 0 + } + + verbose "check_effective_target_vect_mult_long: returning $answer" 2 + return $answer +} + # Return 1 if the target supports hardware vectors of float, 0 otherwise. # # This won't change for different subtargets so cache the result. -- 2.9.1